async def start(local_token=None):
if local_token is None:
raise RuntimeError('please provide yandex token')
flow = (Zeroconf('_yandexio._tcp.local.') >> Tee(
Printer()) >> Applicator(zc_station_info) >> Applicator(
lambda x: device_token(local_token, x), thread=True) >>
Applicator(station_connect) >> Tee(
Printer()) >> Alice(lambda: ainput()))
await flow.start()
async def start():
flow = (
Ticker() >> Logger('before', logging.DEBUG) >> Counter() >>
Tee(Filter(lambda x: x % 2) >> Logger('tee', logging.DEBUG) >> Null())
>> Applicator(lambda x: x * 2) >> Logger('after',
logging.ERROR) >> Printer())
await flow.start()
async def start():
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(('239.255.255.250', 1900))
mreq = struct.pack('=4sl', socket.inet_aton('239.255.255.250'),
socket.INADDR_ANY)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
flow = (Udp(sock=sock) >> Applicator(parser) >> Printer())
await flow.start()
async def test_printer():
stream = io.StringIO()
await asyncio.wait(
(
(List([1, 2, 3]) >> Printer(stream)).start(),
asyncio.sleep(0.01),
),
return_when=asyncio.FIRST_COMPLETED,
)
# we need this magic because we do not have
# proper cancellation of flows yet
tasks = []
for task in asyncio.tasks.all_tasks():
if task is not asyncio.Task.current_task():
task.cancel()
tasks.append(task)
await asyncio.wait(tasks)
assert stream.getvalue() == '1\n2\n3\n'
async def start():
flow = (Thread(functools.partial(shell_command, 'ls -l')) >>
Applicator(lambda x: x.decode().rstrip()) >> Printer())
await flow.start()
async def start():
udp = Udp(local_addr=('127.0.0.1', 5353), reuse_port=True)
await (udp >> Tee(Printer()) >> udp).start()
async def start():
await (Ticker() >> Printer()).start()